Is it possible to search for answers to a death that occurred almost 30 years ago?Zhuang Su (Jin Dong) is a successful cardiothoracic surgeon who has been practicing in the United States. He returns to work at a general hospital in China to find answers to a malpractice case that happened 29 years ago that resulted in the death of a patient.Zhuang Su’s mother, the nurse involved in the case, was forced to resign. Then she saw her 4-year-old daughter kidnapped and then died in a car accident herself.Fellow cardiothoracic surgeon Lu Chen Xi (Bai Bai He) happens to be the daughter of the patient who died in the malpractice case. After she stands up to the hospital director, Yang Fan (Liu Yi Jun), she is demoted to the emergency department.